Automobile brake rubber film high-efficiency demolding auxiliary device

By using a servo motor-driven threaded rod and gear transmission system, efficient and uniform demolding of automotive brake rubber diaphragms is achieved, solving the problem of uneven ejection force in traditional demolding methods and improving product quality and production efficiency.

CN224374614UActive Publication Date: 2026-06-19NINGGUO HAI TIAN LI IND DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGGUO HAI TIAN LI IND DEV
Filing Date
2025-06-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Traditional demolding methods for automotive brake rubber diaphragms are inefficient and result in uneven ejection force, leading to a decline in product quality and yield.

Method used

The threaded rod driven by a servo motor and the gear transmission system push the push plate synchronously through multiple threaded blocks, so as to achieve uniform ejection of the push rod and avoid excessive local force.

Benefits of technology

It improves demolding efficiency, ensures the integrity of the rubber film and product quality, and is suitable for large-scale production.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an efficient demolding auxiliary device for automotive brake rubber diaphragms, relating to the field of demolding assistance technology. It includes a base and a positioning rod mounted on the outer side of the top of the base. A push plate is sleeved on the outer wall of the positioning rod, and multiple push rods are mounted on the top of the push plate. A mold groove is mounted on the top of the positioning rod, and a lower mold is set at the top of the mold groove. Multiple insertion holes are opened inside the bottom of the mold groove. The device also includes threaded blocks for controlling the up-and-down movement of the push plate, as well as drive gears, transmission gears, and driven gears for assisting transmission. One-way threaded rods are rotatably mounted on the bottom of the mold groove between the positioning rods. This utility model uses multiple threaded blocks to simultaneously push the push plate upwards, which in turn pushes the push rods, causing them to insert into the insertion holes, thus demolding the rubber diaphragm inside the lower mold. This structure, by having multiple threaded blocks simultaneously push the push plate, ensures that the ejection force of the push rods is as uniform as possible, preventing excessive localized stress on the diaphragm and subsequent deformation.
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Description

Technical Field

[0001] This utility model relates to the field of demolding assistance technology, specifically to an efficient demolding assistance device for automotive brake rubber diaphragms. Background Technology

[0002] As a key component of the automotive braking system, the automotive brake diaphragm plays a crucial role in transmitting pressure. It is generally made of natural rubber and its blends, and is produced through a mold vulcanization process. In the automotive braking system, the performance of the rubber diaphragm directly affects the braking effect and thus driving safety.

[0003] Traditional methods for demolding automotive brake rubber diaphragms have many drawbacks. In the past, manual demolding was often used. After the rubber diaphragm was vulcanized, workers had to remove it directly from the heated mold. This process was not only inefficient but also difficult to meet the needs of large-scale production. Therefore, demolding aids were needed to assist in demolding.

[0004] Mechanical ejection and demolding auxiliary devices typically consist of components such as a motor, lead screw, and push rod. The motor and lead screw transmission mechanism are installed below or on the side of the mold. After the rubber diaphragm is formed, the motor drives the lead screw to rotate, which in turn drives the push rod to move upward or into the mold, ejecting the diaphragm from the mold. This device has a simple structure, high reliability, and can provide a large ejection force, making it suitable for demolding automotive brake rubber diaphragms with large thickness and high hardness.

[0005] Mechanical ejection and demolding devices typically use push rods to eject rubber films from the mold. However, the distribution and force distribution of the push rods may be uneven, which can lead to inconsistent ejection forces on the film during demolding. This can cause excessive local stress on the film, resulting in deformation and damage, thus affecting product quality and yield. Utility Model Content

[0006] The purpose of this invention is to provide an efficient demolding auxiliary device for automotive brake rubber diaphragms, in order to solve the problem of uneven ejection force affecting product quality mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an efficient demolding auxiliary device for automotive brake rubber diaphragms, comprising a base and a positioning rod installed on the outer side of the top of the base. The outer wall of the positioning rod is fitted with a push plate, and the top of the push plate is fitted with multiple push rods. The top of the positioning rod is fitted with a mold groove, and the top of the mold groove is fitted with a lower mold. The bottom of the mold groove is provided with multiple insertion holes. The device also includes a threaded block for controlling the up and down movement of the push plate, as well as a drive gear, a transmission gear, and a driven gear for assisting transmission.

[0008] One-way threaded rods are rotatably installed at the bottom of the mold slots between the positioning rods, and threaded blocks are threadedly connected to the outer walls of the one-way threaded rods. A driven gear is installed at the bottom of each one-way threaded rod, and multiple mounting plates are installed at the bottom of the base. Transmission gears are rotatably installed on both sides of each mounting plate, and a servo motor is installed at the top center of the base. A drive rod is installed at the output end of the servo motor, and a drive gear is installed at the bottom of the drive rod.

[0009] Preferably, the bottom ends of the one-way threaded rods pass through the push plate and the base in sequence, and the bottom ends of the one-way threaded rods extend to the bottom of the base.

[0010] Preferably, the positions of the push rod and the insertion hole are matched, and the threaded blocks are all installed at the bottom end of the push plate.

[0011] Preferably, the bottom end of the drive rod passes through the base and extends below the base.

[0012] Preferably, the drive gear is located above the top of the transmission gear, and the transmission gear and the drive gear mesh with each other.

[0013] Preferably, the driven gears are all located above the top of the transmission gear on the side away from the driving gear, and the driven gears are all meshed with the transmission gear.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the servo motor drives the drive rod to rotate, the drive rod drives the drive gear to rotate, the transmission gear drives the driven gear to rotate, the driven gear drives the one-way threaded rod to rotate, the one-way threaded rod controls the threaded block to move upward, multiple threaded blocks simultaneously push the push plate upward, the push plate pushes the push rod, so that the push rod is inserted into the interior of the insertion hole, realizing the demolding of the rubber membrane inside the lower mold. This structure, by having multiple threaded blocks simultaneously push the push plate, makes the ejection force of the push rod as uniform as possible, preventing the membrane from being deformed due to excessive local stress. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;

[0017] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0018] Figure 4 This is a bottom view of the structure of this utility model.

[0019] In the diagram: 1. Base; 2. Servo motor; 3. One-way threaded rod; 4. Push plate; 5. Push rod; 6. Lower mold; 7. Insertion hole; 8. Mold slot; 9. Positioning rod; 10. Threaded block; 11. Driven gear; 12. Drive gear; 13. Transmission gear; 14. Drive rod; 15. Mounting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figure 1-4 An efficient demolding auxiliary device for automotive brake rubber diaphragm includes a base 1 and a positioning rod 9 installed on the outer side of the top of the base 1. A push plate 4 is sleeved on the outer wall of the positioning rod 9, and multiple push rods 5 are installed on the top of the push plate 4. A mold groove 8 is installed on the top of the positioning rod 9, and a lower mold 6 is provided on the top of the mold groove 8. Multiple insertion holes 7 are opened inside the bottom of the mold groove 8. The device also includes a threaded block 10 for controlling the up and down movement of the push plate 4, as well as a drive gear 12, a transmission gear 13, and a driven gear 11 for assisting transmission.

[0022] One-way threaded rods 3 are rotatably installed at the bottom of the mold grooves 8 between the positioning rods 9, and threaded blocks 10 are threadedly connected to the outer walls of the one-way threaded rods 3. Driven gears 11 are installed at the bottom of the one-way threaded rods 3, and multiple mounting plates 15 are installed at the bottom of the base 1. Transmission gears 13 are rotatably installed on both sides of the mounting plates 15, and a servo motor 2 is installed at the middle position of the top of the base 1. A drive rod 14 is installed at the output end of the servo motor 2, and a drive gear 12 is installed at the bottom of the drive rod 14.

[0023] The bottom ends of the one-way threaded rods 3 pass through the push plate 4 and the base 1 in sequence, and the bottom ends of the one-way threaded rods 3 extend to the bottom of the base 1.

[0024] The positions of push rod 5 and insertion hole 7 are matched, and threaded blocks 10 are all installed at the bottom end of push plate 4;

[0025] The bottom end of the drive rod 14 passes through the base 1, and the bottom end of the drive rod 14 extends to the bottom of the base 1;

[0026] The drive gear 12 is located above the top of the transmission gear 13, and the transmission gear 13 and the drive gear 12 mesh with each other;

[0027] The driven gears 11 are all located above the top of the transmission gear 13 on the side away from the drive gear 12, and the driven gears 11 are all meshed with the transmission gear 13;

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when using this mechanism, the servo motor 2 drives the drive rod 14 to rotate, which in turn drives the drive gear 12 to rotate. Since the drive gear 12 meshes with the transmission gear 13 and the transmission gear 13 meshes with the driven gear 11, the drive gear 12 can drive the driven gear 11 to rotate, which in turn drives the one-way threaded rod 3 to rotate. Since the one-way threaded rod 3 is connected to the threaded block 10 by a thread, the one-way threaded rod 3 can control the threaded block 10 to move upward. Multiple threaded blocks 10 simultaneously push the push plate 4 upward.

[0029] Working principle: The operator places the lower mold 6, which needs to be demolded, at the top of the mold groove 8, and then starts the servo motor 2. The servo motor 2 drives the drive rod 14 to rotate, which in turn drives the drive gear 12 to rotate. Since the drive gear 12 meshes with the transmission gear 13, and the transmission gear 13 meshes with the driven gear 11, the drive gear 12 can drive the driven gear 11 to rotate. The driven gear 11 drives the one-way threaded rod 3 to rotate. Since the one-way threaded rod 3 is connected to the threaded block 10 by threads, the one-way threaded rod 3 can control the threaded block 10 to move upward. Multiple threaded blocks 10 simultaneously push the push plate 4 upward, which pushes the push rod 5 to insert into the insertion hole 7, thus demolding the rubber film inside the lower mold 6.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An efficient release device for automotive brake rubber diaphragm, comprising a base (1) and a positioning rod (9) mounted on the outer side of the top of the base (1), wherein a push plate (4) is sleeved on the outer wall of the positioning rod (9), and a plurality of push rods (5) are mounted on the top of the push plate (4), a mold groove (8) is mounted on the top of the positioning rod (9), and a lower mold (6) is provided on the top of the mold groove (8), wherein a plurality of insertion holes (7) are provided inside the bottom end of the mold groove (8), characterized in that: It also includes a threaded block (10) that controls the up and down movement of the push plate (4), as well as a drive gear (12), a transmission gear (13), and a driven gear (11) that assist in the transmission. One-way threaded rods (3) are rotatably installed at the bottom of the mold grooves (8) between the positioning rods (9), and threaded blocks (10) are threadedly connected to the outer walls of the one-way threaded rods (3). Driven gears (11) are installed at the bottom of the one-way threaded rods (3), and multiple mounting plates (15) are installed at the bottom of the base (1). Transmission gears (13) are rotatably installed on both sides of the mounting plates (15), and a servo motor (2) is installed at the middle position of the top of the base (1). A drive rod (14) is installed at the output end of the servo motor (2), and a drive gear (12) is installed at the bottom end of the drive rod (14).

2. The high-efficiency demolding auxiliary device for automotive brake rubber diaphragms according to claim 1, characterized in that: The bottom ends of the one-way threaded rods (3) pass through the push plate (4) and the base (1) in sequence, and the bottom ends of the one-way threaded rods (3) extend to the bottom of the base (1).

3. The high-efficiency demolding auxiliary device for automobile brake rubber skin film of claim 1, characterized in that: The positions of the push rod (5) and the insertion hole (7) are matched, and the threaded blocks (10) are all installed at the bottom of the push plate (4).

4. The high-efficiency demolding auxiliary device for automobile brake rubber skin film of claim 1, characterized in that: The bottom end of the drive rod (14) passes through the base (1) and extends to the bottom of the base (1).

5. The high-efficiency demolding auxiliary device for automobile brake rubber skin film of claim 1, characterized in that: The drive gear (12) is located above the top of the transmission gear (13), and the transmission gear (13) meshes with the drive gear (12).

6. The high-efficiency demolding auxiliary device for automobile brake rubber skin film of claim 1, characterized in that: The driven gears (11) are all located above the top of the transmission gear (13) on the side away from the drive gear (12), and the driven gears (11) are all meshed with the transmission gear (13).